Re：リベンジ！クーラーボックスに発泡ウレタン注入！！こいつ・・・止まらない！？

The cooler box has been a failure ever since the last time. This time, I'm adding one-component urethane foam to the missing parts. Wow, I never expected it to turn out like this... Preparation before adding the urethane:    • 格安クーラーボックスを高性能に！できるかな？   Video of the failed attempt where foaming didn't work due to the cold:    • クーラーボックスに発泡ウレタン注入！！高性能化・・・まさかの事態に！？   Also, here's a video of my summer revenge:    • 安いクーラーボックスに２液発泡ウレタンで高性能化！　まさか・・・！